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Drug interactions

Lisdexamfetamine + Oxazepam

Severity: Minor

Lisdexamfetamine and Oxazepam: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

A stimulant and a sedative have opposing effects on arousal, and the net result is unpredictable. Stimulation may mask sedation without removing the psychomotor impairment.

What this interaction means in plain words

Lisdexamfetamine and Oxazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Lisdexamfetamine belongs to Central Nervous System; Oxazepam belongs to Central Nervous System.

Evidence level: Low

Why it happens

Opposing pharmacodynamic effects on CNS arousal; no significant pharmacokinetic interaction is established.

What to do

No routine dose change is needed. Review the ongoing need for each drug and do not rely on the stimulant to offset benzodiazepine sedation.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Lisdexamfetamine with Oxazepam?

MediHelp rates the interaction as minor. Lisdexamfetamine and Oxazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. A stimulant and a sedative have opposing effects on arousal, and the net result is unpredictable. Stimulation may mask sedation without removing the psychomotor impairment.

How serious is the interaction between Lisdexamfetamine and Oxazepam?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is needed. Review the ongoing need for each drug and do not rely on the stimulant to offset benzodiazepine sedation.

What other medicines interact with Oxazepam?

MediHelp also lists interactions of Oxazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Oxazepam page.

Full monographs, dosing and an interaction checker in the MediHelp app

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